I'm the curator of the newly-acquired H.J. Heinz Company collection at the Historical Society of Western Pennsylvania. The collection includes 35,000 items, including numerous bottles, cans and other food containers, many of which have never been opened. I'd like to keep the food in some of the glass containers, especially if there are multiple examples of the same bottle (yes, we have some VERY OLD ketchup & pickles!), but I'm concerned about the possibilty of explosion and possible damage to other items in the collection. Some of the metal cans look like they're about to blow at any time, and I'd like to remove the contents of them right away. Any suggestions on how to handle the glass containers, or how to go about opening the cans? The stuff inside the bottles is fascinating, but I'm not looking forward to seeing the contents of the puffy cans! Thanks, p Gregory Smith HSWP,Pittsburgh